pke: chkpt: minimum required unicode chars

1 files changed, 25 insertions, 0 deletions

diff --git a/editor/editor.cpp b/editor/editor.cpp
index ed1b017..e3f6b7c 100644
--- a/editor/editor.cpp
+++ b/editor/editor.cpp
@@ -715,6 +715,13 @@ int SortFontGlyphChar(const void *a, const void *b) {
 }
 
 void GenerateMTSDF(FontTypeMSDFSettings *msdf_settings, const Asset *a) {
+	static const uint64_t REQUIRED_UNICODE_CHAR_LENGTH = 3;
+	static uint32_t required_unicode_codes[REQUIRED_UNICODE_CHAR_LENGTH] = {
+		9,  // horizontal tab
+		10, // line feed
+		13, // carriage return
+	};
+	uint64_t found_unicode_map = 0;
 	assert(PK_HAS_FLAG(a->type, PKE_ASSET_TYPE_FONT));
 	FontTypeSpacing ft_spacing{};
 	glm::dvec4 dbounds;
@@ -798,6 +805,13 @@ void GenerateMTSDF(FontTypeMSDFSettings *msdf_settings, const Asset *a) {
 				arr[i].unicode = glyphs[i].getCodepoint();
 				arr[i].is_whitespace = glyphs[i].isWhitespace();
 
+				for (uint64_t k = 0; k < REQUIRED_UNICODE_CHAR_LENGTH; ++k) {
+					if (arr[i].unicode == required_unicode_codes[k]) {
+						found_unicode_map |= (1ull << k);
+						break;
+					}
+				}
+
 				glyphs[i].getQuadPlaneBounds(dbounds.x, dbounds.y, dbounds.z, dbounds.a);
 				arr[i].plane_bounds = dbounds;
 
@@ -806,6 +820,17 @@ void GenerateMTSDF(FontTypeMSDFSettings *msdf_settings, const Asset *a) {
 				arr[i].sprite_region_min = glm::vec2(dbounds.x, height - dbounds.a);
 				arr[i].sprite_region_max = glm::vec2(dbounds.z, height - dbounds.y);
 			}
+
+			for (uint64_t k = 0; k < REQUIRED_UNICODE_CHAR_LENGTH; ++k) {
+				if ((found_unicode_map & (1ull << k)) != 0) {
+					continue;
+				}
+				FontGlyphChar fgc{};
+				memset(&fgc, 0, sizeof(FontGlyphChar));
+				fgc.unicode = required_unicode_codes[k];
+				pk_arr_append(&arr_glyphs, &fgc);
+			}
+
 			qsort(arr_glyphs.data, arr_glyphs.next, arr_glyphs.stride, SortFontGlyphChar);
 
 			auto f = fopen(path_glyphs, "w+");